It's all because we live in a lawsuit happy society where if you do something stupid and get yourself hurt, you can just sue whoever owns the property where you got hurt, we've seen it time and time again. Hell, even if someone else does something stupid and you get hurt (cowbell incident) you can just sue everyone in sight (lawsuit naming MSU and SEC as well as the dumbass who did it).
We, as Americans, no longer have the right to allow stupid people to do stupid things, which is ********.